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Dictionary · Drug

bronchodilator

A drug that relaxes the muscles around the airways so they open wider.

brong-koh-DY-lay-ter noun

Word parts

bronch/o airwaydilat widen-or one that does

What it means

A drug, usually inhaled, that widens the bronchi and bronchioles. Short-acting beta-2 agonists such as albuterol are rescue drugs that work within minutes. Long-acting beta-2 agonists such as salmeterol and anticholinergics such as ipratropium and tiotropium are used every day for control in asthmaAZ-muhA long-term lung disease in which the airways become inflamed and narrow from time to time.Full entry and COPDsee-oh-pee-dee (said as letters)Chronic obstructive pulmonary disease: a long-term lung disease that makes it hard to move air out of the lungs.chronic long-lastingobstructive blockingpulmon/o lung-ary relating toFull entry . Theophylline is an older oral bronchodilator.

For the nurse

Teach correct inhaler use and when to use a rescue drug. Beta-2 agonists can cause a fast heart rate, shakiness and nervousness. When a bronchodilator and an inhaled steroid are both due, give the bronchodilator first so the airways open.

At a glance

Drug classbronchodilator
Spanishbroncodilatador
Also writtenbronchodilators

Related terms

COPD

Chronic obstructive pulmonary disease: a long-term lung disease that makes it hard to move air out of the lungs.

asthma

A long-term lung disease in which the airways become inflamed and narrow from time to time.

bronch/o

A word root that means the bronchi, the large airways of the lungs.

inhaler

A hand-held device that delivers a measured dose of drug for a person to breathe into the lungs.

nebulizer

A machine that turns liquid drug into a fine mist that a person breathes in through a mouthpiece or mask.

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